Source

The history viewer of TortoiseHg is based on hgview
<http://www.logilab.org/project/hgview>, a tool developped by David
Douard <david.douard@logilab.fr> and others, with the financial
support of Logilab <http://www.logilab.fr>
TortoiseHg Windows installers include TortoiseOverlays handlers, as
provided by the TortoiseSVN project <http://tortoisesvn.net/>